APCO RT uses a unique combination of UVC light and activated carbon cells to reduce airborne odors, mold, germs and allergens throughout the entire home. APCO RT is installed in the duct work of the central air system so it can remove airborne contaminants as they pass by. APCO RT is similar to the standard APCO model but is designed to fit in smaller ducts.Fresh Aire Duct Mount APCO-MAG UV System: (1) TUVP-ER 18-32 VAC, TUVL-2RT, (1) PCO Cell APCO-MAG11APCO Features:GÇó NO OZONE (Green/Organic Approach)GÇó AHR Innovation Award Winner for IAQ (Supported by ASHRAE)GÇó Approved by the California Air Resources Board (CARB)GÇó Regenerated Activated Carbon Matrix for AbsorptionGÇó 1 or 2 year lamp warranty / LIFETIME warranty on all other replacement partsGÇó Interchangeable Lamp which can be used on multiple productsGÇó No oversizing issues. No oversaturation of oxidizers.GÇó Tested around ASHRAEGÇÖs 52.2 StandardGÇó Made in the USAGÇó Maintenance: Swap the lamp at 1 or 2 years without removing the entire unitGÇó Product registration for replacement lamp business with the ability to send replacement notifications.GÇó Outstanding marketing materials and incentive programsGÇó Ongoing training (WebEx, NATE/CEU, Lunch & Learns, etc.)